Meet Dr. Madder

Dr. Madder grew up in Calgary, Alberta, Canada enjoying the great outdoors. He spent much of his time growing up camping, hiking and fishing with his brothers.

He attended the University of Calgary before moving with his wife and daughter to Pittsburgh PA, to attend University of Pittsburgh School of Dental Medicine in 2001.

Following Graduation in 2005 with a DMD (Dental Medical Doctor) Dr Madder moved to the Tri-Cities to start practicing as an associate dentist.

Following 5 years of wonderful experience as an associate, Dr Madder opened Madder Family Dental in December of 2010.

He is honored to serve as a health care provider in the Tri-Cities area and working with such great people.

He joined Craig Barney at Kennewick Dental in June 2015.

Meet Dr. Rowley

Dr. Rowley grew up near-by Walla Walla. After graduating from Walla Walla High School, he earned his Bachelor’s Degree at Brigham Young University in Provo, Utah. It was there he discovered his passion for dentistry.

He moved back to Washington and completed his Doctor of Dental Surgery degree at the University of Washington School of Dentistry. He moved to the Tri-Cities in 2018 and has been practicing here ever since then.

Dr. Rowley is passionate about providing gentle care with the best quality work possible. In addition, he loves keeping up with the newest technology and materials used to fix teeth.

Dr. Rowley enjoys being a dentist because it allows him to give his patients a better smile and healthier teeth.

When he’s not doing dentistry, you’ll find Dr. Rowley enjoying his time with his amazing wife and 4 kids.

In addition, he enjoys playing sports, watching football, woodworking, and being outdoors.

Meet Dr. Zentz

Dr. Mehak Zentz was raised in the Seattle area and was fortunate to attend the University of Washington for both her undergraduate and dental training. While in dental school, she met her now-husband, Ryan, and after graduation, they moved across the mountains to the Tri-Cities — and haven’t looked back since!

For Dr. Zentz, dentistry has always been about more than just teeth — it’s about people, trust, and building lasting relationships. She is passionate about helping patients feel at ease in the dental chair and believes that every person deserves compassionate, judgment-free care in a space where they feel truly heard.

At Kennewick Dental, Dr. Zentz brings that same passion to her practice, focusing on creating positive experiences and providing the highest quality of dental care possible. Whether it’s easing dental anxiety, explaining treatment options, or celebrating a healthy smile, she values the human connections she makes as much as the dentistry itself.

In addition to English, Dr. Zentz also speaks some Spanish and Hindi/Punjabi, which allows her to connect more personally with patients from diverse backgrounds and help them feel even more comfortable during their visits.